Making a Recipe in Beersmith to suit the Robobrew

So a couple of things that will get it a bit closer, I cut out the 15min whirlpool time and I dropped the AA% down in Beersmith to match the recipe, though yes you should do it to match the actual hops you have. So now its saying about 41ibus. Much closer. The rest of the difference would just come from different setups..
You need to adjust hop amounts. You could use the bitterness scale adjuster but that will adjust all of the hops, in my opinion keeping the fuggles at 50g for flavour/aroma is a good thing. So I'd adjust it manually.

You could either drop the 30min to 10g. Or drop the 60min to 20g.

All these hop adjustments were with challenger adjusted to AA 7% like the recipe, if your actual hop was AA 7.5%, 20g/20g still pretty close, or 25g/10g would work.

I'd also drop the BH Efficiency in beersmith to 75% since its a first time brew and that gets your numbers closer too, most recipes online or in shops will be made for BH efficiency for 65-75% somewhere. Robo gets quite high eff, if all goes well due to less loss than a big 3V system.

Side note.. I never understand a 30min addition, its just adding bitterness so its more economical to drop the amount a touch and put it at 60min with the other... (Could remove 30min totally and use about 36g @60min)

Hope that makes sense, please don't hesitate with any more questions, cheers mate!

If you are planning a whirlpool, no chill or just have a very slow chiller let me know and we can adjust again for that.